mysql_global_status_slow_queries Incorrect value

[kzcPo]

Host operating system: output of uname -a

Linux xxxx 3.10.0-957.21.3.el7.x86_64 #1 SMP Tue Jun 18 16:35:19 UTC 2019 x86_64 x86_64 x86_64 GNU/Linux

mysqld_exporter version: output of mysqld_exporter --version

mysqld_exporter, version 0.13.0 (branch: HEAD, revision: ad2847c7fa67b9debafccd5a08bacb12fc9031f1)
  build user:       root@e2043849cb1f
  build date:       20210531-07:30:16
  go version:       go1.16.4
  platform:         linux/amd64

MySQL server version

5.6.16-log

What did you do that produced an error?

metric mysql_global_status_slow_queries and mysql show global status like "slow_queries" Incorrect value !

mysql Slow_queries 3252 mysql_global_status_slow_queries 10063